but then i heard 18 more shots that sounded like a semiautomatic and i hit the floor. my employees must have scattered because when i got up there was nobody there but me. >> it was like virginia tech and columbine. he came with a hockey mask on and came with the intent to kill. >> and he did. the mall will be closed tomorrow as police and atf and the fbi continue their investigation. no word on a motive or the identity of the gunman. now, "nightline" will have more after this newscast at 11 oocht 35. >>> a late decision on four fire houses.contra contra costa county supervisors decided to close stations in love lafayette, martinez, clayton and walnut creek. they will close about $3 million a year. the supervisors say they were forced to close the station after voters turned down a seven-year parcel tax that would have kept them open. >>> a bad year for murders has gotten worse. the latest victim was a teenager whose death invaded a peaceful neighborhood with a crash. abc7 news reporter john olson is live to explain what happened. john? >> reporter: the city's 44th hom